Longitudinal magnetic recording heads with variable-length gaps

Details Longitudinal magnetic recording heads with variable-length gaps Longitudinal magnetic recording heads with variable-length gaps

2005-03-08

2005-03-08

Ometz, David L. (Department: 2653)

Dynamic magnetic information storage or retrieval

Head

Gap spacer

Reexamination Certificate

active

06865056

ABSTRACT:
A longitudinal recording head (50, 56, 60) for use with magnetic recording media includes a non-uniform gap (54, 59, 64) between first (51, 57, 61) and second magnetic (52, 58, 62) poles which focuses magnetic flux onto a small area of the magnetic recording medium. The non-uniform gap is preferably in the form of a cavity that is contoured to produce the desired flux pattern. Longitudinal recording heads incorporating the non-uniform gap are capable of improved recording densities.

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